Entry history for rex, n.¹ & adj.rex, n.¹ & adj. was revised in March 2010.rex, n.¹ & adj. was last modified in March 2025. Revision of the OED is a long-term project, and oed.com is a living text, updated every three months. Modifications may include: corrections and revisions to definitions, especially to improve clarity, accuracy, or intelligibility; new or updated quotation evidence, and reverified or redated bibliographical information; new or updated pronunciations (transcriptions and audio files); new or revised etymological information and improved coverage of variant spellings; new senses or phrases added in print and online updates since OED2 (1989). Revisions and additions of this kind were last incorporated into rex, n.¹ & adj. in March 2025. Earlier versions of this entry were published in:OED First Edition (1908)OED Second Edition (1989)CitePermanent link: Chicago 18Oxford English Dictionary, “,” , . Copy to clipboard Copied to clipboard MLA 9“” Oxford English Dictionary, Oxford UP, , . Copy to clipboard Copied to clipboard APA 7 Oxford University Press. (n.d.). In Oxford English dictionary. Retrieved , from Copy to clipboard Copied to clipboard Select format to download citation.ris (Papers, Zotero).enw (EndNote).txt (RefWorks)DownloadContributePlease submit your feedback for rex, n.¹ & adj.Please include your email address if you are happy to be contacted about your feedback. OUP will not use this email address for any other purpose. Section (required)FactsheetEtymologyMeaning & usePronunciationFormsFrequencyCompounds & derived wordsOtherFeedback (required)SubmitCitation detailsFactsheet for rex, n.¹ & adj.Browse entryNearby entriesrewrap, v.1796–rewritable, adj.1971–rewrite, n. & adj.1901–rewrite, v.1567–rewrite man, n.1901–rewriter, n.1854–rewrite rule, n.1960–rewriting, n.1760–rewriting rule, n.1961–rewritten, adj.1777–rex, n.¹ & adj.Old English–rex, n.²1566–1732Rexine, n.1903–Rexism, n.1936–Rexist, n. & adj.1936–rex sole, n.1914–Reye, n.1965–reyield, v.1562–Reynard, n.c1400–reynardism, n.1656–reynardize, v.1656–76, Destination Guide Wide open spaces, friendly faces and unique places - explore Rex destinations across Australia with TrulyAus for Rex., Rex Airlines Pty Ltd is an Australian regional airline based in Mascot, New South Wales. It operates scheduled regional services using turboprop aircraft. Between 2021 and 2024, Rex also operated jet services between selected major Australian cities. In July 2024, it collapsed and was placed into voluntary administration. It is the primary subsidiary of Regional Express Holdings, itself .